Home / 1,372,989,412.77-1,895,128,625.36-896,752,586.78

Finding the Fourth Proportional to 1,372,989,412.77, 1,895,128,625.36 and 896,752,586.78

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Solution

The fourth proportional to 1,372,989,412.77, 1,895,128,625.36 and 896,752,586.78 is: 1,237,781,938.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,989,412.77 : 1,895,128,625.36 = 896,752,586.78 : x
  2. Step 2: Convert to fraction form
    1,372,989,412.77/1,895,128,625.36 = 896,752,586.78/x
  3. Step 3: Cross multiply
    1,372,989,412.77x = 1,895,128,625.36 × 896,752,586.78
  4. Step 4: Simplify right side
    1,372,989,412.77x = 1,699,461,497,072,405,248
  5. Step 5: Solve for x
    x = 1,699,461,497,072,405,248/1,372,989,412.77
  6. Step 6: Final answer
    x = 1,237,781,938.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.